from __future__ import annotations
import typing
import asyncio
import traceback

import datetime
from pkg.core import app
from pkg.platform.adapter import MessagePlatformAdapter
from pkg.platform.types import events as platform_events, message as platform_message
from collections import deque
from libs.official_account_api.oaevent import OAEvent
from pkg.platform.adapter import MessagePlatformAdapter
from pkg.platform.types import events as platform_events, message as platform_message
from libs.official_account_api.api import OAClient
from libs.official_account_api.api import OAClientForLongerResponse
from pkg.core import app
from .. import adapter
from ...core import app
from ..types import message as platform_message
from ..types import events as platform_events
from ..types import entities as platform_entities
from ...command.errors import ParamNotEnoughError


class OAMessageConverter(adapter.MessageConverter):
    @staticmethod
    async def yiri2target(message_chain: platform_message.MessageChain):
        for msg in message_chain:
            if type(msg) is platform_message.Plain:
                return msg.text
            

    @staticmethod
    async def target2yiri(message:str,message_id =-1):
        yiri_msg_list = []
        yiri_msg_list.append(
            platform_message.Source(id=message_id, time=datetime.datetime.now())
        )

        yiri_msg_list.append(platform_message.Plain(text=message))
        chain = platform_message.MessageChain(yiri_msg_list)

        return chain
        

class OAEventConverter(adapter.EventConverter):
    @staticmethod
    async def target2yiri(event:OAEvent):
        if event.type == "text":
            yiri_chain = await OAMessageConverter.target2yiri(
                event.message, event.message_id
            )

            friend = platform_entities.Friend(
                id=event.user_id,
                nickname=str(event.user_id),
                remark="",
            )

            return platform_events.FriendMessage(
                sender=friend, message_chain=yiri_chain, time=event.timestamp, source_platform_object=event
            )
        else:
            return None

class OfficialAccountAdapter(adapter.MessagePlatformAdapter):

    bot : OAClient | OAClientForLongerResponse
    ap : app.Application
    bot_account_id: str
    message_converter: OAMessageConverter = OAMessageConverter()
    event_converter: OAEventConverter = OAEventConverter()
    config: dict


    def __init__(self, config: dict, ap: app.Application):
        self.config = config
        
        self.ap = ap

        required_keys = [
            "token",
            "EncodingAESKey",
            "AppSecret",
            "AppID",
            "Mode",
        ]
        missing_keys = [key for key in required_keys if key not in config]
        if missing_keys:
            raise ParamNotEnoughError("微信公众号缺少相关配置项，请查看文档或联系管理员")
        
        
        if self.config['Mode'] == "drop":
            self.bot = OAClient(
                token=config['token'],
                EncodingAESKey=config['EncodingAESKey'],
                Appsecret=config['AppSecret'],
                AppID=config['AppID'], 
            )
        elif self.config['Mode'] == "passive":
            self.bot = OAClientForLongerResponse(
                token=config['token'],
                EncodingAESKey=config['EncodingAESKey'],
                Appsecret=config['AppSecret'],
                AppID=config['AppID'], 
                LoadingMessage=config['LoadingMessage']
            )
        else:
            raise KeyError("请设置微信公众号通信模式")


    async def reply_message(self, message_source: platform_events.FriendMessage, message: platform_message.MessageChain, quote_origin: bool = False):

        content = await OAMessageConverter.yiri2target(
            message
        )
        if type(self.bot) == OAClient:
            await self.bot.set_message(message_source.message_chain.message_id,content)
        if type(self.bot) == OAClientForLongerResponse:
            from_user = message_source.sender.id
            await self.bot.set_message(from_user,message_source.message_chain.message_id,content)

            
    async def send_message(
        self, target_type: str, target_id: str, message: platform_message.MessageChain
    ):
        pass


    def register_listener(self, event_type: type, callback: typing.Callable[[platform_events.Event, MessagePlatformAdapter], None]):
        async def on_message(event: OAEvent):
            self.bot_account_id = event.receiver_id
            try:
                return await callback(
                    await self.event_converter.target2yiri(event), self
                )
            except:
                traceback.print_exc()

        if event_type == platform_events.FriendMessage:
            self.bot.on_message("text")(on_message)
        elif event_type == platform_events.GroupMessage:
            pass

    async def run_async(self):
        async def shutdown_trigger_placeholder():
            while True:
                await asyncio.sleep(1)

        await self.bot.run_task(
            host=self.config["host"],
            port=self.config["port"],
            shutdown_trigger=shutdown_trigger_placeholder,
        )

    async def kill(self) -> bool:
        return False

    async def unregister_listener(
        self,
        event_type: type,
        callback: typing.Callable[[platform_events.Event, MessagePlatformAdapter], None],
    ):
        return super().unregister_listener(event_type, callback)
    
    